baber/WOPTO huggingface dataset:
Patent GB-130216-A (GB)
Title: Improvements in or relating to the Construction of Doors for Metallurgical and like Furnaces.
Inventor: NUTT ARTHUR THOMAS
IPC: F27D1/18
Filed: 1918-10-07
Abstract: 130,216. Nutt, A. T., and Harvey, F. A. Oct. 7, 1918. Doors.-The back a<1> is outwardly arched in both directions at rightangles to each other and a concavoconvex brickwork lining b is provided with a space between the two to allow of the expansion of the brickwork. During construction, this space is filled with sand, and the back has holes d to allow the sand to run out when the brickwork expands. Portions of the back may be cut away as shown, when clay flanges are provided round the openings to retain the sand.
Patent GB-1392661-A (GB)
Title: Oil seals for rotary piston engines
IPC: F01C19/08
Filed: 1972-04-07
Abstract: 1392661 Sealing rotary I C engines NIPPON PISTON RING CO Ltd 7 April 1972 [8 April 1971] 16272/72 Heading F1F An axial oil seal for a rotary internal combustion engine of the trochoidal type comprises an annular sliding face 61 which includes a lip portion making an angle α with housing side wall 21 and an annular contact portion at the radially inner periphery of the sliding face 61 for frictional contact with wall 21, and an annular groove 63 provided on the lip portion such that the distance from the radially inner wall of groove 63 and the radially inner face 62 of seal 6 being not more than the maximum width permitted, with wear, for the contact portion, this maximum width being that beyond which the oil seal will not fulfil its desired sealing function.
Patent GB-506611-A (GB)
Title: Improvements in changeable letter signs
IPC: G09F7/08
Filed: 1938-05-31
Abstract: 506,611. Signs; puzzles. WENTZEL, L. J. May 31, 1938 No. 16276. [Classes 3 (i) and 3 (ii)] [Also in Group XV] In signs set up letter by letter the changeable elements comprise bent-over tabs 13 bearing displays on each side and which are sufficiently long for their front part to pass into a cross-slot 11 of the facia 10 below the supporting cross-slot and for the rear part to contact with the bottom end of the front part. A bent over backing 14 may have projections 15 which bear against the tab bottoms to hold them in place when the backing is closed. The backing may be held to the facia 10 by bolts 17 -passing through holes 16 in both parts, or by cut-out tongues on the backing passing through slots in the facia. The tabs may be cut out of a sheet printed with a picture in the form of disarranged sections, and the device used as a puzzle. Below the changeable tabs may be provided a window through which are seen replaceable display discs 24, which may be coaxially mounted for rotation to show any combination of the figures thereon, the upper discs having slots to reveal displays on the lower ones.
Patent GB-235729-A (GB)
Title: Improvements in or relating to excavating machines
IPC: E02F3/50
Filed: 1924-07-07
Abstract: 235,729. Downie, R. R., and Keystone Driller Co. July 7, 1924. Scooping - apparatus. - In an excavating- machine comprising a scoop 3 which moves substantially horizontally along a boom 1, the scoop is suspended from the boom by means of six rollers, three on each side of the boom, the front pairs of rollers 17 being rockably connected to the scoop. The rear pair of rollers 23 is secured to the front pairs by links 18 and are adjustably connected to the rear of the scoop by links 20 to allow the lead or slope of the scoop and of the earth-entering teeth 5 carried thereon tc be adjusted. The tilting bottom 6 is retained in the closed position by a latch 24 which is held normally in engagement with a tongue 27 on the bottom by a spring 42 but is released by rotation of a cam 29 operated' by a lever 33 against the resistance of a spring 39.
Patent GB-554134-A (GB)
Title: Improvements in and relating to two stroke internal combustion engines
IPC: F02B25/00
Filed: 1941-12-18
Abstract: 554,134. Two-stroke engines; combustion chambers. DUFOUR, L. Dec. 18, 1941, No. 16323. Convention date, Feb. 17. [Classes 7 (ii) and 7 (iii)] In a two-stroke engine with piston-controlled inlet and exhaust ports 4, 5 and in which the gases entering the cylinder are directed upwards along the cylinder wall, a pocket 7 in the cylinder head 3 is of decreasing radius of curvature from the wall of the cylinder and terminates in a descending wall 8 which is vertical or slightly inclined towards the ascending stream of gases. The wall 8 is at a distance of about one-fifth to one-half the diameter of the cylinder from the wall of the cylinder opposite to the ascending stream of gases. The object is to create eddies which prevent the escape of the fresh gases through the exhaust port. The wall 8 is preferably inclined to the axis of the cylinder at an angle between 5 degrees and 15 degrees, and the port a of the cylinder head is parallel to the corresponding part of the piston, the edge 9 being rounded. Figs. 3 and 5 show arrangements in which two inlet ports 4 are located on either side of an exhaust port 5. The edge 9 of the pocket may be straight in plan or curved as shown in Fig. 6. Specification 476,356 is referred to.
Patent GB-135799-A (GB)
Title: Improvements in Hydraulic Clutches or Couplers.
Inventor: HELE-SHAW HENRY SELBY
IPC: F16D31/02
Filed: 1918-04-12
Abstract: 135,799. Shaw, H. S. Hele-. April 12, 1918. Clutches and speed-varying mechanism. - In hydraulic clutches of the kind wherein pistons cooperate with one or more cams, means are provided for freeing the pistons from contact with the cams when the clutch is thrown out. The invention is described with reference to the clutch described in Specification 135,524, in which the driving-shaft 1 carries a body 3 provided with cylinders 5 communicating with a closed circuit comprising passages 10, 10<a>, valves 11 controlling the circulation of liquid, and the pistons 7 coacting with swash-plates 8 keyed to the driven shaft 9. The closed circuit is kept full by liquid supplied through a running joint 18, pipes 16, and non-return valves 17. The valves 11 are moved from their open positions against the action of springs 20 by pressure liquid from a cock 22 passing through the joint 18, pipes 21, and ports 23. When the cluch is to be thrown out, the cock 22 is operated to relieve the pressure, the springs 20 open the valves, and liquid in the closed circuit passes out through passages 25, thus allowing springs 14 to move rings 12 towards each other and free them from the swash-plates.
Patent GB-404209-A (GB)
Title: Improvements in or relating to shock absorbers for vehicles
IPC: B60G17/06
Filed: 1933-06-07
Abstract: 404,209. Shock-absorbers. SOC. D'EXPLOITATION DES BREVETS L. SIMON (AMORTISSEURS SANCHOK), 9, Rue Boissy d'Anglas, Paris. June 7, 1933, No. 16404. Convention date, June 8, 1932. [Class 108 (i.i).] Frictional shock-absorbers for vehicles are controlled in accordance with the vehicle speed by a disc 2 driven, e.g. from the speedometer S and carrying pivotally-mounted masses 1 which, under the action of centrifugal force, actuate directly or indirectly a membrane 4 adapted to move in a fluid-tight manner in a fluid pressure chamber 5 connected to compression chambers for regulating the vibration-dampers 10. As shown, arms 1<1> on the masses 1 engage a cylindrical member 17 carried on a spindle 16 journalled in the disc 2 and actuating a piston 3 through a thrust bearing 7. The compression chamber 5 is formed by a deformable pleatedmembrane 4 in a cylinder 9 and an apertured cover 18.
Patent GB-237203-A (GB)
Title: Improvements in liquid fuel burners
IPC: F23D11/10
Filed: 1924-04-12
Abstract: 237,203. Rutherford, E. J. Y. April 12, 1924. Spray burners. - In a liquid-fuel burner steam for fuel atomizing purposes is generated in a flash - boiler comprising four straight or slightly curved tubes a<1>, a<2>, a<3>, a<4> which are secured at one end to the base of a hollow cap-piece a so as to diverge at equal angles from the burner axis and are fitted with core-rods e<1>, e<2>, e<3>, e<4> to prevent surging and render the steam generation more uniform. The feed water is led through pipe g<1>. g to the tubes a<2>, a<4> and after being converted into steam pass from the tubes a<1>, a' through a hollow cross-bar b to a central discharge nozzle c. The steam from the nozzle c atomizes the fuel issuing from a nozzle h which is preferably carried by a lug h<2> on the crossbar b and has its axis obliquely inclined relatively to the nozzle c. The steam nozzle may comprise a central orifice c' having an enlarged mouth c<2> and formed with air-inlet holes c<3>. A pricker needle d<2> may be fitted in the bar b for clearing the nozzle c. The tubes a<1> - - a<4> may be surrounded by a deflector i and a guard j mav be fitted at the rear end of the burner. The core rods are inserted in the tubes through cap nuts b<1>, f<1> at their rear ends. One of the core rods may extend to the end of the hole in the cap-piece a as shown.
Patent GB-515442-A (GB)
Title: Improvements in or relating to gas-proof shelters
IPC: E04H9/10
Filed: 1938-06-01
Abstract: 515,442. Construction and ventilation of gasproof shelters. ATWILL & SON, Ltd., R., HOLFORD PROCESSES, Ltd., HOLFORD, H. J., and WHITE, H. F. June 1, 1938, No. 16428. [Classes 20 (i) and 137] The shelter is provided with air-tight doors and air circulating and filtering means extending within the chamber, an induction fan associated with the filter in the inlet and an extraction fan arranged in the air outlet. A gas proof, and blast proof air raid shelter, adapted also for use as a garage has a pyramidal roof 11, and is mounted on a concrete raft 12, the sides being made of reinforced concrete, and the interior covered with moisture absorbent material such as wall-board. A vestibule 13 is provided at one side, and at the opposite side are, armour plated doors 16 are lined with " Plymax " and packed with silicate cotton and activated charcoal for insulation. The vestibule has inner and outer doors 20, 18 between which are arranged fireproofed blanket - screens' 22. Windows 23 are constructed of glass bricks of " Insulite," and an air inlet and outlet 32, 36 with armour plate covers are provided, the inlet having a cylindrical metal housing containing two filters 46, and a fan 40 which induces filtered air into the shelter. Fig. 5 shows an assembly of fans and filters in the outlet and in the inlet opening, one fan 56 drawing in air through a filter 62 and delivering-filtered air through a pipe 64 and branch 66, the extraction fan 68 removing air by pipe 76, and delivering it through a filter 78 and outlet 36. The fans may be driven either by a motor 88 or by pedal drive 90, or by both. The driving means are both reversible so that the fans may be driven in opposite directions to facilitate the changing of the filters, each of which may comprise a frame 98 and gauze 100, Fig. 8, enclosing the activated charcoal and asbestos-merino wool. A colour changing gas indicator 104 shows when replacement is necessary. The activated charcoal and wool may be supplied in a carton 106, Fig. 9, having perforated sides. Provision is made for bye-passing the filters so as to supply unfiltered air when required, and an air-flow meter 118 is provided, with a counterbalanced float 122 in the air inlet pipe.
Patent GB-1395894-A (GB)
Title: Bearing assemblies
IPC: F16C33/60
Filed: 1971-05-21
Abstract: 1395894 Welding by fusion SKF (UK) Ltd 19 May 1972 [21 May 1971] 16432/71 Heading B3R [Also in Division F2] In electron or laser beam welding together of two parts 27, 28 of a motor vehicle wheel hub ball bearing assembly, at cylindrical mating surfaces thereof, the beam penetrates the mating surfaces to provide a weld 35, and debris forced from between the mating surfaces by the beam is trapped in a chamber 40 which is remote from the beam source and is formed, at least in part, by the parts 27, 28. The bearing assembly comprises two rows of balls 15, 16 engaging races supported on or, as shown, formed on an outer member 14 and the parts 27, 28. As shown, the mating surfaces are formed on a spigot 31 of the part 27 and is a socket portion 33 of the part 28. The chamber 40 is provided by co-operation of a shoulder 41 of the part 27 and an overlying lip 42 of the part 28. The spigot 31 and the socket 33 fit together with a light interference. If desired, the bearing may be axially pre-loaded by application of a force between the parts 27, 28 after taking up ball/track clearance. Welding is effected by rotation of an electron or laser beam about the bearing assembly axis. In Fig. 5 (not shown), the spigot and socket portion 31, 33 are respectively disposed on the parts 28, 27. In Fig. 2 (not shown), instead of the lip 42, the chamber 40 is closed by a metal band (46) supported radially on the shoulder 41 and axially abutting the adjacent end wall (45) of the socket portion 33. In Fig. 3 (not shown), the band is additionally supported radially on a small ledge (47) of the socket portion 33. In Fig. 4 (not shown) the band is further additionally supported axially by a shouldered seating 48 on the shoulder 41 and this arrangement provides for use of the band as an axial spacer for pre-setting ball clearance or preload. The band may be an interference fit, or where the prevailing debris particle size is comparatively large, a clearance fit on the shoulder 41 and ledge (47). The band may be formed with one or more circular corrugations allowing axial band flexure to accommodate variation in axial length between the shoulder 41 and the end wall (45).
Patent GB-1482824-A (GB)
Title: Method and apparatus for recycling photographic wash wate
IPC: G03D3/06
Filed: 1975-04-21
Abstract: 1482824 Photographic processing; washing MEAD CORP 21 April 1975 [22 April 1974] 16455/75 Heading G2X  In a photographic development process the water used to wash the film after the fixing step is treated to convert the thiosulphate salts in the wash water to sulphates enabling the water to be re-used for further washing: The spent wash water is conveyed to a reaction vessel where it is combined with warm moist air from a dryer which dries the film after the washing step. The thiosulphates are oxidized to sulphates by the air in the presence of a wet-proofed carbon catalyst and the sulphate water is then returned to the washing apparatus. After washing the film may be briefly rinsed by un-recycled fresh water. The carbon catalyst is wet-proofed by partially coating the carbon particles with poly-tetrafluoroethylene.
Patent GB-334234-A (GB)
Title: Method of electrical television
IPC: H04N3/08
Filed: 1929-05-29
Abstract: 334,234. Godelli, A. May 29, 1929. Television. - Comprises a system for scanning more finely in the centre of the picture than elsewhere, the dimensions of the scanning-element being varied in two dimensions at rightangles. A concave mirror 1 is attached, together with a barmagnet 2, to a stretched string 7, and the magnet 2 is caused by twophase magnetization of the electromagnets 3, 4, to trace out a conical surface. The mirror 1 and magnet 2 are preferably mounted at a node of the string 7 when the latter is vibrating at the frequency of the two-phase field. An image of the object 8 is projected by the mirror 1 on to a screen 9 and the scanned elements are picked out by an aperture 10 so as to affect the light-sensitive cell 11 in succession. The radial size of the aperture is varied by an electromagnetically-controlled shutter 14, which accords with the pitch of the spiral scanning-path as determined by the amplitude of the two-phase, field of the magnets 3, 4. The direction of the optical axis of the transmitter may be varied so that the scanning-centre is moved about with respect to the picture frame; the optical axis at the receiver is similarly manipulated by hand, a lamp which forms part of the object serving as a mark to facilitate the immobility of the picture as a whole. In order that the scanning-path may be spiral, the windings 5, 6 are fed in quadrature by two oscillators which are interrupted periodically so that the amplitude of movement dies away logarithmically after each interruption, in consequence of resistance and friction. The tangential length of the picture elements is varied in consequence of the interruption of the illumination either mechanically or by the application of highfrequency a.c. to the photo-electric cell which is then active during alternate, half-periods only.
Patent GB-380059-A (GB)
Title: Improvements in and relating to means for distributing furnace gases in lancashire and similar types of steam boilers
IPC: F23M9/00
Filed: 1931-06-06
Abstract: 380,059. Baffles for furnace gases. INDUSTRIAL COMBUSTION ENGINEERS, Ltd. and LINDSAY, W. A., Cecil Chambers, Strand, London. June 6, 1931, No. 16556. [Class 51 (i).] Turbulence is imparted to the gases in the flue of a Lancashire or like boiler by causing a portion of the gases to travel in helical paths along the internal face of the flue while another portion travels in paths directed from the axis of the flue towards the flue wall so as to mingle with the helically directed gases. A baffle for directing the gases as stated above comprises a number of sector shape blocks 1 united by tongue-and-groove joints 2 and supported in the flue on tubular blocks 4. The flange 5 of the baffle is provided with inclined or helical ribs 11. Openings are provided in the sectors for the reception of nozzles 7 held in position by refractory cement 8 or by wedges 9 or by cement and wedges. The nozzles may be set at any desired angle to direct the gases towards the wall of the flue. A nozzle 10 is provided at the centre of the baffle. The nozzles 7, 10 may be so shaped or provided with projections that they impart helical movement to the gases.
Patent GB-1479373-A (GB)
Title: Vehicle-propulsion system
IPC: F02B1/04
Filed: 1975-04-22
Abstract: 1479373 Alternative systems of working DAIMLER-BENZ AG 22 April 1975 [30 April 1974] 16603/75 Heading F1B An internal combustion engine is operable with fossil fuel supplied through a passage 2 from a reservoir 3 which is also connected to a fuelcracking carburetter 5 connected by a passage 12 to a hydride hydrogen accumulator 13 which is connected in turn to the engine by a passage 14, whereby the engine can be operated with lean hydrogen/air mixture or a hydrogen/fuel-gas/air mixture when driving in built-up areas and can be operated on fossil fuel, using an approximately stoichiometric mixture when driving in open country. The cracking carburetter 5 may contain a catalyst. The reservoir 13 is provided with a heat exchanger 19 through which a coolant is circulated to promote absorption of hydrogen and through which a heating medium is circulated to promote release of hydrogen. Mechanically linked valves 15, 16 and 17 are opened and closed simultaneously. When the valves are open, the engine operates on fuel from tank 3 and fuel also passes to carburetter 5. Decomposition products from the carburetter pass to reservoir 13, where the hydrogen is absorbed, the remainder of the gases being fed to the engine through passage 14. When the valves are completely closed, the engine runs on hydrogen drawn from reservoir 13. Valve 15 may be slightly open when valves 16 and 17 are closed so that some fossil fuel is supplied directly to the engine. In addition to fuel, carburetter 5 is supplied with air and/or water.
Patent GB-1092751-A (GB)
Title: Means for effecting electrical contact between a connecting conductor and a metal body
IPC: H01R4/64
Filed: 1965-04-20
Abstract: 1,092,751. Direct contact between conductors. FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. N.V. April 20, 1965 [April 20, 1964], No. 16604/65. Heading H2E. An electrically conductive tube 13 is formed with a split end, which is inserted into the bore of a metal body 11 embedded in an insulating block 10 which bore has the same diameter as the external diameter of the tube, and an expansion sleeve 14 is inserted into the split and to force it outwardly into contact with the metal body. The expansion sleeve is preferably made of sheet steel having a longitudinal slot and chamfered ends. Two half tubes may be used instead of the single tube, which may be of copper. A second conducting tube may be inserted into the other end of the bore.
Patent GB-589556-A (GB)
Title: Improvements in or relating to brake drum lathes
IPC: B23B5/02
Filed: 1944-08-31
Abstract: 589,556. Portable turning-apparatus. BARRETT, H. B., and BARRETT CO., Ltd., H. B. Aug. 31, 1944, No. 16607. [Class 83 (iii)] [Also in Group XXIII] A lathe for operations on brake drums, including turning and grinding, comprises the combination of a track-way, a carriage disposed on the track-way, a lathe head mounted on and movable with the carriage, an arbor mounted in the lathe head adapted at one end to be secured to the work, and a tool mounted for rotary movement on the arbor, actuating means being carried by the head to produce relative longitudinal motion between the arbor and the lathe head, and means for detachably securing the carriage in a selected location' on the trackway. A pair of wheels W with brake drums d are placed between the rails 1 of the machine and the wheel hub is fastened by the cones 44, 44' to a non-rotating arbor 42 projecting from the machine head. The crank handle 26 is rotated to bring the verticallyadjustable tool-head of the machine into alignment with the wheels prior to the trueing operation. A tool 118 mounted on an arm 117 at right angles to an adjustable square-section arm 106, rotates around the arbor and relative axial movement between tool and work is effected by axial feed of the arbor 42 either by hand or by an electric motor 27 which rotates the tool. The tool-holding member 51, Fig. 8, is rotatably mounted in the casing C and is rotated through spur gears 64, 65 from the motor 27. A worm 46 rotating with the toolholder drives a cross-shaft 89, Fig. 9, with a friction coupling at its outer end enabling a worm 88<1> to be selectively rotated either by the hand wheel 87 or by the power means. The worm 88<1> is geared to a worm-wheel on a vertical shaft which has a pinion at its lower end engaging rack teeth 41<1> cut on the end of the arbor remote from the work. The tool bar 117 may be replaced by an attachment with an electric motor and grinding-wheel g, Fig. 17. A balance weight is then used at the other end of the arm 106 and the motor is supplied by current through a slip ring 71 adjacent the casing C, control of the motor being effected from a rheostat 32. The machine is normally traversed along the rails 1 to position it, but may be held at one end by a catch 6 when a hub and brake drum without tyres are supported by the arbor 42.
Patent GB-544787-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P1/20
Filed: 1940-11-18
Abstract: 544,787. Master control of motors. IGRANIC ELECTRIC CO., Ltd. Nov. 18, 1940, No. 16618. Convention date, Nov. 18, 1939. Drawings to Specification. [Class 38 (iii)] A motor is accelerated by sequentially operated contactors, the time interval between the closures of which is reduced if the motor fails to start. Movement of a master switch to an " on " position energises the operating coils of the contactors, and as each closes, interlocks thereon open the circuit of a restraining coil on the next contactor, this coil normally, discharges slowly through a resistor and a capacitor. If the motor has failed to start, a voltage responsive relay across the armature fails to operate and leaves another resistor connected across the next restraining coil so as to discharge it quickly and so allow the next contactor to close quickly. This method of control when applied to a motor driving a wire-drawing machine reduces the time of threading the wire stage by stage.